Datasheet

DocID025743 Rev 6 37/106
STM32F031x4 STM32F031x6 Electrical characteristics
80
6.1.6 Power supply scheme
Figure 12. Power supply scheme
Caution: Each power supply pair (V
DD
/V
SS
, V
DDA
/V
SSA
etc.) must be decoupled with filtering ceramic
capacitors as shown above. These capacitors must be placed as close as possible to, or
below, the appropriate pins on the underside of the PCB to ensure the good functionality of
the device.
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